numbuzin • Serum

numbuzin No.5 Dark Spot Serum — Choose Your Formula

⚠️ IMPORTANT: Choose the Right Formula for Your Skin Although both products share the same name and goal (treating dark spots), they feature completely different active formulations: 🟡 Option 1: Olive Young Version (Duo Set - 60 ml) • Key Actives: Glutathione + Vitamin C. • How it works: Direct brightening via powerful antioxidants and general radiance boost. • Best for: Those seeking overall skin tone unification, surface-level spot treatment, and economic value (2 bottles at a discounted price). • Price: $27.30 for the Duo Set (~$13.65 per bottle). Option 2: Amazon Version (Single Bottle - 30 ml) • Key Actives: Tranexamic Acid 4% + Niacinamide 5%. • How it works: Inhibits melanin production at the source, targeting stubborn hormonal hyperpigmentation (like melasma). • Best for: Those dealing with deep pigmentation, persistent post-acne marks, and those wanting a concentrated treatment for specific concerns. • Price: $9.60 for a single bottle. Verdict: Both are authentic and effective. If your priority is "general brightening and glow," choose Olive Young. If your priority is "treating specific, stubborn hyperpigmentation," choose the Amazon version. ⚠️ Price Disclaimer: Prices shown are subject to change without notice due to retailer promotions, coupons, or flash sales. The prices listed were last verified on 2026-09-22. Please check the final price at checkout on the retailer's website before purchasing. We are not responsible for price discrepancies after this date.

Related guide: Hyperpigmentation & Dark Spots